Development of Multi-Part Field-Shapers for Magnetic Pulse Welding Using Nanostructured Cu-Nb Composite

IF 4.7 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC ACS Applied Electronic Materials Pub Date : 2024-05-05 DOI:10.3390/jmmp8030097

E. Zaytsev, V. Krutikov, Alexey Spirin, Sergey Paranin

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Abstract

Magnetic pulse welding (MPW) employs a strong pulsed magnetic field to accelerate parts against each other, thus forming an impact joint. Single-turn tool coils and field-shapers (FSs) used in MPW operate under the most demanding conditions, such as magnetic fields of 40–50 T with periods lasting tens of microseconds. With the use of conventional copper and bronze coils, intense thermo-mechanical stresses lead to the rapid degradation of the working bore. This work aimed to improve the efficiency of field-shapers and focused on the development of two- and four-slit FSs with a nanocomposite Cu 18Nb brazed wire acting as an inner current-carrying layer. The measured ratios of the magnetic field to the discharge current were 56.3 and 50.6 T/MA for the two- and four-slit FSs, respectively. FEM calculations of the magnetic field generated showed variations of 6–9% and 3% for the two- and four-slit FSs, respectively. The ovality percentages following copper tube compression were 27% and 7% for the two- and four-slit FSs, respectively. The measured deviations in the weld-joining length were 11% and 1.4% in the two- and four-slit FSs, respectively. Compared to the previous experiments on an entirely steel inductor, the novel FS showed significantly better results in terms of its efficiency and the homogeneity of its magnetic field.

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利用纳米结构铜铌复合材料开发用于磁脉冲焊接的多部件场形整形器

磁脉冲焊接（MPW）利用强脉冲磁场加速零件相互撞击，从而形成冲击接头。用于 MPW 的单圈工具线圈和场整形器 (FS) 在最苛刻的条件下工作，如 40-50 T 的磁场和持续数十微秒的磁场。使用传统的铜线圈和青铜线圈时，强烈的热机械应力会导致工作孔迅速退化。这项工作旨在提高场整形器的效率，重点是开发以纳米复合铜 18Nb 钎焊线作为内载流层的双缝和四缝 FS。测量结果表明，双缝和四缝 FS 的磁场与放电电流之比分别为 56.3 和 50.6 T/MA。对所产生磁场的有限元计算显示，双缝和四缝 FS 的磁场变化率分别为 6-9% 和 3%。铜管压缩后的椭圆率在双缝和四缝 FS 中分别为 27% 和 7%。双缝和四缝 FS 的焊接长度测量偏差分别为 11% 和 1.4%。与之前在全钢电感器上进行的实验相比，新型 FS 在效率和磁场均匀性方面都有明显改善。

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来源期刊

ACS Applied Electronic Materials Multiple-

CiteScore

7.20

自引率

4.30%

发文量

567

期刊介绍： ACS Applied Electronic Materials is an interdisciplinary journal publishing original research covering all aspects of electronic materials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials science, engineering, optics, physics, and chemistry into important applications of electronic materials. Sample research topics that span the journal's scope are inorganic, organic, ionic and polymeric materials with properties that include conducting, semiconducting, superconducting, insulating, dielectric, magnetic, optoelectronic, piezoelectric, ferroelectric and thermoelectric. Indexed/Abstracted： Web of Science SCIE Scopus CAS INSPEC Portico

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